Q: What is the sum of all factors of the number 261,990 excluding 261,990?
A: 445,626
The factors of the number 261,990 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 71, 82, 90, 123, 142, 205, 213, 246, 355, 369, 410, 426, 615, 639, 710, 738, 1065, 1230, 1278, 1845, 2130, 2911, 3195, 3690, 5822, 6390, 8733, 14555, 17466, 26199, 29110, 43665, 52398, 87330, 130995, 261990.
If you add them up, you will get the total of 262,435. Now subtract 261,990 to get 445,626